/Engine/Source/Runtime/GeometryCore/Public/Selections/MeshConnectedComponents.h
Initialize the internalFComponentlist from the input ComponentLists, skipping any empty input lists
true if all IDs are valid, or if check was skipped
bool InitializeFromTriangleComponents ( [TArray](API\Runtime\Core\Containers\TArray)< [TArray](API\Runtime\Core\Containers\TArray)< int32 >> & ComponentLists, bool bMoveSubLists, bool bValidateIDs )